| Heptasaurus Temporal range:
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|---|---|
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| Underside of the skull of Heptasaurus cappelensis | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Order: | †Temnospondyli |
| Suborder: | †Stereospondyli |
| Clade: | †Capitosauria |
| Family: | †Mastodonsauridae |
| Genus: | †Heptasaurus Säve-Söderbergh, 1935 |
| Type species | |
| †Heptasaurus cappelensis (Wepfer, 1923 [originally Mastodonsaurus cappelensis])
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Heptasaurus is an extinct genus of Triassic capitosaurian temnospondyl within the family Mastodonsauridae.[1][2]
